Charleston Police say equipment stolen from a tower site could be used to interfere with emergency radios or air traffic communications. Now, the FBI is joining in on the investigation.

Sergeant Aaron James says in all: at least ten equipment buildings were broken into at three different sites Sunday night: Garfield hill on the west side where the WSAZ Charleston tower is located, a tower site in North Charleston, and another on the east end at North Gate Business Park.

The piece of equipment stolen was a radio receiver/transmitter (repeater) and frequency counter from the North Gate site, according to James.

James tells us they believe the same suspects were involved with all of the break-ins -- and the thieves only took one piece of equipment in all, leaving other equipment in tact. In fact, he says some tools taken from the North Gate site were left at the Garfield tower site.

The department asked the FBI to join in the investigation after learning about the potential harm the equipment can cause to emergency radio systems. James says the equipment taken could jam frequencies, not allowing emergency communication.

James is asking all area tower owners to check their sites to see if anyone has tampered with equipment. They're urging anyone with information about the break-ins to call them: (304) 348-6480.